Karel Walraven (34)

1-06-2005 | Being mindful of our delicate environment starts at home with a thorough hunt for all electrical equipment large and small that’s wasting en...

1-05-2005 | We receive a quite few schematics from readers at our editorial offices. With these, it is frequently the case that the designer has not tak...

1-02-2005 | What do most electronics engineers enjoy a lot? Designing printed circuit boards, of course! In an irregular series of articles we would lik...

1-01-2005 | Designing a power supply for one of your circuits can beplain sailing but also turn out to be a surprisingly complex job.Switch-mode power s...

1-12-2004 | What did you say BTX was again? Well, it’s just the successor of ATX! ATX is the collective term for the electrical and mechanical character...

1-12-2004 | There is a new standard these days for connecting hard disks and DVD drives: SATA. You may already have noticed that new PCs don’t contain t...

1-11-2004 | This design is a follow-up to the triumphant ‘Battery Revitaliser’ project published in the September 2001 issue of Elector Electronics. Fro...

1-07-2004 | In single phase AC induction motors, often used in fridges and washing machines, a start winding is used during the starting phase. When the...

1-07-2004 | Nowadays some first-rate voltage references are available. Take the LM385 for example: this is available for different voltages and even com...

1-07-2004 | The increased availability of fast ADSL Internet connections has made it more attractive to install a small RJ45 Ethernet network in the hom...